14
4104 V100-UK
4501 display readout of input 4-20 ma loop error detection and
signal ”outside range”
Input loop error check:
Device:
Configuration
Input loop error detection
4104
OUT.ERR = NONE.
OFF
OUT.ERR = DOWN, UP and ZERO
ON
Input ”outside range” limits - readout (IN.LO, IN.HI):
Input
Ranges
Readout
Limit
CURR
All - unipolar and bipolar
IN.LO
< -23 mA
IN.HI
> 23 mA
VOLT
All - unipolar and bipolar
IN.LO
< -12 V
IN.HI
> 12 V
Input loop error detection - readout (LO.ER):
Input
Range
Readout
Limit
CURR
4..20 mA
LO.ER
<= 3.6 mA; > = 21 mA
Display readout below min.- / above max. (-1999, 9999):
Input
Range
Readout
Limit
All
All
-1999
Display readout <-1999
9999
Display readout >9999
Readout at hardware error
Error search
Readout
Error caused by
Check measurement of analogue output - read
*
note
AO.ER
No load on the current output
(only S4...20 mA)
Communications test 4501 / 4104
NO.CO
Connection error
Hardware error - read
**
note
FL.ER
Error in FLASH
Configuration error - read
**
note
CO.ER
Error in FLASH
Check that saved configuration in 4501 matches device
TY.ER
Invalid type or rev. no
Hardware error - read
*
note
AO.SU
Analogue output supply err.
Hardware error - read
*
note
RA.ER
RAM error
Hardware error - read
*
note
EE.ER
EEPROM error
Hardware error - read
*
note
AD.ER
A/D converter error
Hardware error - read
*
note
IF.ER
Flash check sum error
! All error indications flash (1 Hz), and the corresponding helptext is shown.
If the error is an input loop error, the display backlight flashes as well - this is
acknowledged (stopped) by pushing the OK button.
* Error is acknowledged by either stepping through the basic setup, or by
resetting the device power.
Some types of errors can only be acknowledged by resetting the device power.
** Error is acknowledged by stepping through the basic setup.